Ribera Ponsa, Helena (Date of defense: 2018-03-16)
In this thesis we study diffusion processes of nanoparticle evolution and develop appropriate models with the aim of being able to optimise their functions according to the needs of industry. Two distinct ...
Costa Miranda, Núria (Date of defense: 2021-04-14)
This PhD thesis focuses on lattice-based cryptography and how to apply it to build post-quantum online voting systems. It is the result of the research done by the author at Scytl in close collaboration ...
Vegué, Marina (Date of defense: 2018-03-23)
Structure is fundamental in shaping the types of computations that neuronal circuits can perform. Explaining the laws that determine the connectivity properties of brain networks and their implications ...
Chrysokentis, Georgios (Date of defense: 2019-04-03)
This thesis develops a large eddy simulation framework for engineering applications using the finite element method. It focuses on the numerical formulation, the wall modelling approach as well as the ...
Gatti, Francesca (Date of defense: 2021-03-19)
Let E be an elliptic curve defined over the field of rational numbers and let f be the corresponding newform of weight 2. Let g,h be two weight one newforms whose nebentype characters are mutually ...
Muixí Ballonga, Alba (Date of defense: 2020-11-30)
This thesis proposes a new computational model for the efficient simulation of crack propagation, through the combination of a phase-field model in small subdomains around crack tips and a discontinuous ...
Calvo Schwarzwälder, Marc (Date of defense: 2019-07-12)
For 200 years, Fourier’s law has been used to describe heat transfer with excellent results. However, as technology advances, more and more situations arise where heat conduction is not well described ...
Schaefer, Rodrigo Gonçalves (Date of defense: 2018-07-11)
In Chapters 1 and 2 of this thesis, we prove that for any non-trivial perturbation depending on any two independent harmonics of a pendulum and a rotor there is global instability. The proof is based ...
Roy, Mallika (Date of defense: 2020-02-12)
This work is based on the family of groups Z^m x F_n, namely free-abelian times free groups, direct products of finitely many copies of Z and a finitely generated free group F_n. These are a special ...
Diego, Víctor (Date of defense: 2017-11-24)
In this work we present the study we did in Graph Theory. In the firsts chapteres of the tesis we study the pieces of information that can be obtained from a graph: the spectrum of the adjacency matrix, ...